Plow



Patented Feb. 15, 1938 UNITED STATES PATENT OFFICE PLOW Walter H. Silver, Moline, Ill., assignor to Deere & Company, Moline, Ill., a corporation of Illinois l Application November 2, 1936, Serial No. 108,758

8 Claims. (Cl. 97-209) The present invention relates generally to plows has a plow bottom 2l! fixed to the end thereof and more particularly to an improved rolling in the usual manner. colter mounting for plows of the type used in The frame of the plow is supported on a furplowng bog land. The rolling colter is provided row wheel 2l and a land wheel 22. The furrow 5 to cut through the surface trash, down through Wheel 2| is mounted on a swinging crank axle the ground to the point of the share. In this way 23, and the land wheel 22 is mounted on a swinga clean furrow wall is secured, and the plow bot-` ing crank axle 2d. The crank axles 23 and 24 are tom can easily turn the cut completely over. suitably journaled in plates 25 and 26 Xed on n Heretofore rolling colters Were journaled bethe beams IB and Il.

tween supporting bars, which were xed to a The axle of the land wheel 22 is provided with 10 vertical standard attached to the beam of the a clutch mechanism 2l, by which traction power plow. I'his type of mounting was undesirable of the land wheel 22 is employed to raise the inasmuch as the surface trash on the landside en- 910W. AS Slleh meehallsm iS Well kl'lOWll, it Will tangled the bars and standard and clogged the not be described in detail here. The p-low is adcolter. Another undesirable feature of this justed to any desired depth by means of levers 28 15 mounting was that the colter could not be adconnected by linkage to the crank axles in any justed laterally to any appreciable extent, as in Conventional manner.

the case of difcult scouring soil the colter must The rolling COlteI unil? indicated by the referbe set farther to the land to secure increased ence numeral 29 comprises a Crank axle 3e havpressure 0n the m01db0ard, ing a transversely extending supporting portion 20 It is the object of this invention to provide a 3l mounted on the plow frame, en erm portion 32 rolling colter mounting which wi11 shed the surextending downwardly and rearwardly from the face trash, iurrowward end of the supporting portion, and

Another object is to provide for independent all aXle Dertien 33 turned lalldWaldly at the end vertical and horizontal adjustment of the colter, of the arm portion 32. The laterally extending 25 so that if it is desired to adjust the rolling colter bearing DOTT/i011 3l iS leurllaled ill plates 34 and vertically, the horizontal adjustment need not be 35 flXeCl t0 the beams lll and l l, Which ale Spaeed disturbed and vice versa, at this point by a transverse brace 35a.

Another obje-et is to utilize the colter mount- The Crank member 3l! is held eseinet'lateral 304 ing for a simplied adjustable hitch connection, mOVemellt by means 0f Sel', Cellars 36 and 3l', DlO- 30,

which will offer a minimum resistance to surface Vded On'the laterally eXtendiIlg IJOltOYl 3l, en

trash, each side of the plate 35, as shown in Figure 1.

I accomplish these objects by the construction The' aXle POItiOD 33 0f the Crank Se has a disk and arrangement of parts shown in the drawing colter 38 journaled at the end thereof. The crank 35 and hereinafter particularly described, 3B is held against vertical swinging movement by 35 in the drawing; means of a strap 39 having an opening at one end Figure 1 i5 a, plan View 0f a, plow embodying the thlOllgh Which the aXle pOllllOIl 33 eXtelldS, the principles of my invention; other end of the strap 39 being provided with a Figure 2 is a, Side- VieW 0f the plow in an Operai-, series of holes 4D. A bolt lll inserted through one 40 ing position with the furrow Wheel removed; and of the holes 40 and an aligned hole provided in 40 Figure 3 is a, Sectional View taken along the the beam l0 secures the strap 39 to the beam lll. line 3-3 of Figure 1. To adjust the colter laterally the set collars 36 AS best Shown in Figure 1I what may be termed and 31 are loosened on the laterally extending 4r the frame of the plow comprises two parallel Jnlalefrlfte gfh rlhew Cralk Samoanl be be th l w beam I0 and al terall i c 5.7 -y e p-OW 45 2 S e p O a y spa ed bottom, as desired. The vertical adjustment of gn'ade hgngafrll; arlrs afgdarg the colter 38 is not affected by the lateral adjust- L ment, lfor the axle portion 33 moves laterally in order to oier less resistance when traveling the opening inthe lower end of the Strap, 39

si through brush 0r Wash- The ends 4 and 5 are When the rolling eeiter unit 29 is in its desired so bent at right angles to the parallel beams and position the set collars 36 and 3l are tightened are secured together by bolts lli The real' 0f the and the rolling colter unit 29 isrigidly held in beam ll is bent inwardly at Il toward the plow its adjusted position. beam and is bent at I8 parallel to the beam lll To adjust the colter vertically the bolt 4l is and secured thereto by bolts I9. The beam l0 removed and the crank 30 moved upI or down, 55

pivoting about the laterally extending portion 3|. When the colter unit is in the desired position the bolt 4| is inserted through another of the holes 49 in the strap 39 and the hole in the beam i9, thereby securing the strap 39 and the beam il! rigidly together.

The colter 39 comprises a circular disk 42, the periphery of which is sharpened to a cutting edge, a cup-like hub member 43 and a hub cap 44. The disk 42 is secured to the hub by bolts 45 which are inserted in aligned openings in the hub cap 54, the disk, and the hub member 43. The interior surface 46 of the hub member 43 is machined to provide an outer bearing surface for a roller bearing 4'|. A sleeve 48 provides the inner bearing surface for the roller bearing. The sleeve 48 slides over the end of the axle portion 33 of the crank 32 and engages a shoulder 49 thereon. The sleeve is held from axial movement by a washer 50 secured to the end of the axle by a nut 5|, which is threaded on a stud 52 in the end of the axle.

The plow is pulled by means of a hitch which is adapted to offer a minimum resistance to brush and trash, while providing for vertical and horizontal adjustment. The hitch comprises a draw bar 63, the rear end of which is bent upwardly to form a spindle 64. The spindle is inserted through a vertically extending opening in an anchor block 65 wherein it is slidable, and held in place by a cotter pin 66. The anchor block S5 is also provided with a horizontally extending aperture through which the bearing portion 3| of the colter crank member 30 is inserted. The block 65 is slidable laterally on the bearing portion 3| and is fixed in adjusted position by a set screw 61.

The draw bar 63 extends forwardly through an opening provided in a vertical bar 68.' The vertical bar |58V is inserted through vertically aligned openings in a U-shaped bracket 69 secured cn the front of the plow beam ends |4 and E5, by means of the bolts I6. The vertical bar G8 is secured in place by set collars 'l0 provided between the sides of the U-shaped bracket 69. rIlhe end of the draw bar $3 is provided with the usual clevis by which the plow is connected to the tractor.

The draw bar B3 is adjusted laterally by loosening the screw 51 and moving the block 65 along the portion 3|, the draw bar 63 swinging about the axis of the vertical bar E8, Vwhich rotates in its bracket. The hitch may be adjusted vertically by loosening the set screws of the collars 'iQ and the set screw |51 of the collar B5, allowing the draw bar 63 to be raised or lowered, the upright end 64 turning the collar 65 on the laterally extending portion 3| and the center of the draw bar $3 moving the bar 68 vertically in the openings of the bracket B9. When the hitch is in its desired position the set screw 61, and the set screws in the collars 'Hl are tightened and the hitch 83 is rigidly held in place.

The advantages of a plow embodying the prnciples of my invention for use in bog land or other places where there is a large quantity of brush or trash, are evident. The plow has a minimum of projecting corners and edges on which to collect trash. The single crank arm 32 located on the iurrowward side of the colter away from the long, uncut trash and the absence of vertical standards in the colter mounting are particularly advantageous for shedding trash. The novel hitch, without the usual low transverse supporting members for the draw bar or side plates for adjusting the draw bar, is particularly adapted for cleaving through the brush. The converging plow beams I2, 3 are also conducive toward this end. It is to be noted, however, that the simplicity of my design is not obtained at the expense of adjustability, as the design provides for a full range of vertical and lateral adjustment of the hitch.

I do not intend my invention to be limited to the precise details shown and described herein except as set forth in the following claims.

I claim:

1. In combination with a plow having a pair of laterally spaced, longitudinally extending beams, a rolling colter, and supporting means therefor providing independent vertical and lateral adjustments of said colter, said supporting means comprising a journal bearing on each of said laterally spaced beams, `and a crank axle swingably mounted in said bearings and slidable laterally therein, said colter being journaled at the end of said crank axle.

2. In combination with a plow having a pair of laterally spaced, longitudinally extending beams, a rolling colter, and supporting means therefor providing independent vertical and lateral adjustments of said colter, said supporting means comprising a journal bearing on each of said laterally spaced beams, a crank axle swingably mounted in said bearings and slidable laterally therein, said colter being journaled at the end of said crank axle, means for fixing said crank axle in various selected positions of lateral adjustment, and means for xing said crank axle in various selected angular positions relative to said beams.

3. In combination with a plow, a colter and adjustable supporting means therefor comprising a crank axle having a transversely extending bearing portion and a crank arm portion, journal bearing means for rotatably supporting said bearing portion on said plow, means for attaching said colter to the end of said crank arm portion, and bracing means between said colter connected end of the crank arm and said plow for adjustably fixing the angular position of said crank arm relative to said plow.

4. A mounting for a rolling colter on an agricultural implement, said mounting comprising a crank axle having a bearing portion, a crank arm portion, and an axle portion, journal bearing means for supporting said bearing portion whereby said crank arm portion is swingable longitudinally of said plow, said axle portion extending landwardly from said crank arm portion and providing an axle support for said rolling colter, and bracing means between said axle portion and said implement for adjustably xing the angular position of said crank axle relative to said implement.

5. A mounting for a rolling colter on an agricultural implement having a longitudinal beam, said mounting comprising a crank axle having a transversely extending bearing portion journaled on said beam and slidable laterally thereon, collars on said bearing portion for adjustably securing said bearing portion against lateral movement, a crank arm portion extending rearwardly from the furrowward end of said bearing portion of the crank axle, an axle portion extending landwardly from the end of said crank arm portion, bracing means connected to said axle portion and extending substantially vertically to said beam, and means for adjustably securing said bracing means to said beam for adjusting the height of said axle portion relative to said beam.

' 6. A combined hitch and colter mounting for an agricultural implement having a pair of laterally spaced longitudinally extending beams, which comprises a pair of transversely aligned journal bearings, one of said bearings being associated with each of said beams, respectively, a crank axle having a transversely extending bearing portion journaled in said bearings, a crank arm portion connected to one end of said bearing portion, and a colter-carrying portion at the end of said arm portion, means for adjustably xing the position of said crank axle relative to said implement, an anchor block disposed on said bearing portion and adapted for lateral adjustment thereon, and a draw bar pivotally connected to said anchor block and extending forwardly therefrom.

7. A combined hitch and colter mounting for an agricultural implement having a pair of laterally spaced longitudinally extending beams, which comprises a pair of transversely aligned journal bearings, one of said bearings being associated with each of said beams, respectively, a crank axle having a transversely extending bearing portion journaled in said bearings, a crank arm portion connected to one end of said bearing portion, and a colter-carrying portion at the end of said arm portion, means for adjustably xing the position of said crank axle relative to said implement, an anchor block slidably disposed on said bearing portion, means for fixing said block on said portion in adjusted position, a draw bar pivotally connected to said anchor block and extending forwardly therefrom, a supporting member for the draw bar disposed forwardly of said anchor block, said member being vertically adjustable relative to said beams, and means for fastening said member on said beams in adjusted position.

8. In a combined colter mounting and hitch for a plow, a colter-carrying crank axle having a transversely extending bearing portion journaled on the plow, a draw bar, means for connecting the rear end of said draw bar to said bearing portion, said connecting means providing for lateral adjustment of said draw bar on said bearing portion, and means for supporting said draw bar intermediate the ends thereof comprising a vertically disposed bar connected to said draw bar, a bracket xed to said plow and having vertically aligned openings receiving said vertical bar, and a set collar embracing said vertical bar and engaging said bracket for adjustably fixing the position of said Vertical bar vertically with respect to said bracket.

WALTER H. SILVER. 

